Question

11 multiple choice 1 point what ignites the fuel and air mix in a gasoline engine? the spark plugs. heat from compression the glow plugs the injection of pressurized fuel 12 multiple choice 1 point what controls the ignition in a diesel engine? the fuel injectors the spark plugs the glow plugs thermostatic ignitor

Explanation:

• For question 11: In a gasoline engine, spark plugs create a spark that ignites the fuel - air mixture. Heat from compression is for diesel engines (ignites fuel via high - compression heat), glow plugs are for cold - starting diesel engines (pre - heat the combustion chamber), and injection of pressurized fuel is part of the fuel delivery system but not the ignition source in gasoline engines.
• For question 12: In a diesel engine, the fuel injectors control the ignition. Diesel engines rely on high compression to heat the air, and the fuel injectors spray fuel into the hot, compressed air at the right time for ignition. Spark plugs are for gasoline engines, glow plugs are for pre - heating in diesel (not ignition control), and thermostatic ignitor is not a standard component for diesel ignition control.

Answer:

1. The spark plugs.
2. The fuel injectors.